Priming-cup



E. G. VAN WIE.

PRIMING CUP.

APPLICATION FlLED 'MAY 21,1920.

Patented "Mar. 22, 1921. V

wuentox attoznup UNITED STATES PATENT OFFICE...

EDWIN: G- VAN WIFLOF DETROIT,MICHIGANL Application filed May 27,

I e To. all whom it may concern:

Cups, of which the following is a specification, reference being had therein to the a companying drawings.

This invention relates to priming cups for internal combustion engines.

The invention consists inthe structural features and arrangement of parts hereinafter described. It has among other objects, the provision'of a means for simultaneously unseating the valve of the priming cup and lifting a cover therefor to admit the prlming fluid, and forming of the cup proper separate from the tubular mounting therefor to facilitate production.

In the drawings:

Figure 1 is a view of the improved cup in side elevation showing the cover thereof seated;

Fig. 2 is a vertical sectional view of the same showing the valve and cover unseated;

In these views reference characters 1, 2, 3 and 4 designate portions comprising the tubular supporting member for the prlming cup. The portion 1 is threaded to engage an explosive engine or the like; the portion 2 is in the nature of a hexagonal head engageable by a wrench to turn the tubular member into its support; the portion 3is threaded for engagement by the base of a flaring cup member 5 which may be spun 0r drawn from sheet metal or tubing, and the portion 4: extends upwardly within said cup member and is interiorly threaded. Said portion 4 is formed with an intake orifice 6 just above the bottom of the cup member 5, and at any point below said orifice said tubular member is restricted as indicated at 7 to provide a tapering seat for a correspondingly shaped valve Sformed by the lower end of a stem 8 which is screw threaded into the portion 4 of the tubular member. The cup 5 is provided with a disk shaped sheet metal cover 9 through which the stem 8* passes, said cover resting normally upon the rim of the cup and being held to its seat by the latch spring 10. The latter is in the nature of a leaf spring exteriorly secured to the cup and having a curved upper portion 10 bent to engage above the cover 9. The upper end portion Specification of Letters Patent. Patented Mar, 22, 1921,

1920. Serial No. 384,522.

of thestem 8" is bent through a right angle as indicated at 11, to form a handle for rotating said stem. Between the handle 11 and cover9, a spring 12 is coiled upon the stemB to bear downwardly upon said cover and hold the same normally seated. Be neath the cover 9a nut 13 is threaded upon said stem in such a location as to lie close adjacent the cover when both the lattcrand the valve8 are seated. Thus when the stem 8 is rotated by its handle to lift and unseat i the valve 8, the cover 9 is simultaneously unseated through? engagement therewith of the nut 13. 1 a i i From the foregoing descriptionit is seen i that the construction is one that lends itself admirably to a cheap production, the tubular member having portions 1, 2, 3 and 4 being adapted to be produced at low cost from a hexagonal bar or tube and the cup member 5 being adapted to be spun or drawn from sheet metal or tubing. The cover member 9 may be stamped from sheet metal, and the stem 8 together with its handle may be inexpensively formed from a metal bar or rod. The preferred materials from which to form said parts are either aluminum or brass.

In the use of the device, as the stem 8 is rotated to thread the same out of the portion 4, of the tubular support, thus unseating the valve 8, the nut 13, exerts an upthrust upon the center of the cover 9. Since however, the cover is held down at one end by the spring latch 10, it may not rise in its entirety under the pressure of the nut 13, but will tilt to the position indicated in Fig. 2, being retained at one point in engagement with the cup 5 by the latch spring 10. In this tilted position, the priming fiuid may be readily introduced into the cup beneath the cover, and the valve 8 being unseated, said fluid will discharge through the orifice 6 into the tubular supporting member, and thence to the engine. When the stem 8 is adjusted again to return the valve 8 to its seat, the spring 12 will likewise return the cover member 9 to its seat and will hold it retaining the: cover in engagement with the cup at a point on its periphery and a com- 'mon means for unseating said valve and for tiltin said cover upwardly about said point.

2. K priming cup comprising a cup 'member, a cover seated thereupon, a valve controlling the discharge from the cup, a spring latch engaging an edge of the cover with its seat, and means for simultaneously unseating said valve and tilting the cover upwardly about its point of engagement with saidlatch.

3. A priming cup comprising a tubular supporting member, a cup member mounted thereupon, and adapted to discharge therethrough, a cover member seated upon said cup member, a valve engageable with the tubular member to control the discharge from the cup provided with a stem extending upwardly through said cover member and formed above the latter with a handle portion, a spring mounted upon said stem g-between said handle portion and cover member preventing unseating'of. the latter, and

means carried by the stem beneath the cover member for elevating the latter upon raising of the stem to unseat said valve.

4. A priming cup comprising a tubular member having a lower attaching portion, a cup member secured to said tubular member above the attaching portion, into which cup member an interiorly threaded upper portion of said tubular member extends, an opening being formed in said portion adjacent to the bottom, of the cup member, a cover member seated upon the cup member, a valve seated within said tubular member and controlling the discharge through said opening, said valve member having a stem threaded into said upward extension of the tubular member and further passing through said cover, a handle carried by said stem above the cover, and means carried by the stem below the cover for lifting the latter when the stem is raised to unseat the valve.

In testimony whereof I afiix my signature.

EDWIN G. VAN XVIE. 

